Module 9: The Mole

What is the unit used to represent an unbalanced chemical equation?

A covalent bonded set of two or more atoms

A whole number placed in front of a chemical formula

A chemical reaction where a single compound breaks down into two or more simpler substances

What is the unit used to represent a chemical equation with equal numbers of atoms on both sides?

A small number written below and to the right of a chemical symbol in a compound formula

A standard used for measurement

Compounds containing water ( H 2 O ) molecules

Simple numbers of each type of atom in a molecule

A chemical reaction where one element replaces another element in a compound

A type of reaction that occurs when the cations and anions switch between two reactants to form new products

The percentage by mass of each element in a compound

What is the mass of one mole of a substance called?

What shows the reactants and products of a chemical reaction?

A unit in chemistry equal to 6.022 x 10²³ particles of a substance

The number of particles in 1 mole of a substance

What is the simplest whole-number ratio of elements in a compound?

Describes a chemical reaction using the names of the substances involved

A chemical process in which simple elements or compounds combine to form a more complex product